Add support for the WebAssembly backend to the BFD library.

	* wasm-module.c: New file to support WebAssembly modules.
	* wasm-module.h: New file to support WebAssembly modules.
	* doc/webassembly.texi: Start documenting wasm-module.c.
	* config.bfd: Add wasm_vec.
	* targets.c: Likewise.
	* configure.ac: Likewise.
	* Makefile.am: Add entries for wasm-module.c.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.

1 files changed, 52 insertions, 0 deletions

diff --git a/bfd/wasm-module.h b/bfd/wasm-module.h
new file mode 100644
index 0000000..a6fd557
--- /dev/null
+++ b/bfd/wasm-module.h
@@ -0,0 +1,52 @@
+/* BFD back-end for WebAssembly modules.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+
+   This file is part of BFD, the Binary File Descriptor library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#ifndef _WASM_MODULE_H
+#define _WASM_MODULE_H
+
+/* WebAssembly module file header.  Note that WASM_VERSION is a 32-bit
+   little-endian integer, not an LEB128-encoded integer.  */
+#define SIZEOF_WASM_MAGIC    4
+#define WASM_MAGIC           { 0x00, 'a', 's', 'm' }
+#define SIZEOF_WASM_VERSION  4
+#define WASM_VERSION         { 0x01, 0x00, 0x00, 0x00 }
+
+/* Prefix to use to form section names.  */
+#define WASM_SECTION_PREFIX ".wasm."
+
+/* NUMBER is currently unused, but is included for error checking purposes.  */
+#define WASM_SECTION(number, name) (WASM_SECTION_PREFIX name)
+
+/* Section names.  WASM_NAME_SECTION is the name of the named section
+   named "name".  */
+#define WASM_NAME_SECTION          WASM_SECTION (0, "name")
+#define WASM_RELOC_SECTION_PREFIX  WASM_SECTION (0, "reloc.")
+#define WASM_LINKING_SECTION       WASM_SECTION (0, "linking")
+#define WASM_DYLINK_SECTION        WASM_SECTION (0, "dylink")
+
+/* Subsection indices.  Right now, that's subsections of the "name"
+   section only.  */
+#define WASM_FUNCTION_SUBSECTION 1 /* Function names.  */
+#define WASM_LOCALS_SUBSECTION   2 /* Names of locals by function.  */
+
+/* The section to report wasm symbols in.  */
+#define WASM_SECTION_FUNCTION_INDEX ".space.function_index"
+
+#endif /* _WASM_MODULE_H */